Source Naturals Zinc
Brand: Source Naturals · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that calcium is a critical mineral for bone health, but it requires careful management. Our assessment: you should approach calcium supplementation with a clear understanding of your dietary intake and medical history, as the data reveals significant risks at high levels [NIH ODS].
How it works
Think of calcium as a structural foundation for your skeleton. It supports bone density and mineral deposition, and it also plays a key role in neuromuscular relaxation and nerve signaling [NIH ODS]. This means it helps your muscles relax after contracting and supports the electrical signaling in your nervous system.
Safety profile
FDA has received 592,059 total adverse event reports for this product category. The data shows that high calcium intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Data not available for a specific dosage from the provided information. Before taking calcium, carefully review your total intake from food and other supplements. If you take any of the listed medications, separate your calcium dose by at least two hours. Speak with your healthcare provider to assess your personal risk, especially regarding kidney function and heart health [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Source Naturals |
|---|---|
| Serving Size | |
| Contents | 250.0 Tablet(s) |
| Market Status | On Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide